Using Exercise and Nutrition to Optimize Health in Older Men

The Effects of a Combined Resistance and High-Intensity Interval Exercise Training Program with Nutritional Supplementation, on Strength and Physical Function in Older Men

Starting in the 5th decade of life, we begin to lose muscle mass at a rate of about 1% and strength declines even more rapidly. This is concerning, because losses in muscle mass, strength and function are associated with an increase in the risk of falls or fractures, physical disability and diseases like type 2 diabetes. Given that the number of older individuals is increasing, it is important to develop strategies to encourage healthy, independent aging. Resistance exercise (RE) – or weight lifting – is currently the best defence against the loss of muscle mass and function observed with age. High-intensity interval training (HIIT) consists of repeated bouts of vigorous effort separated by short periods of rest. HIIT is very effective in improving cardiovascular fitness, and studies have suggested that this form of exercise might also be successful in increasing muscle mass and strength. Therefore, we suspect that an exercise training program that combines RE and HIIT would be beneficial for older individuals.

In addition to exercise, some food ingredients have proven to be important for increasing muscle strength. We are interested in learning whether we can optimize increases in muscle mass and strength that occur as a result of a combination of RE and HIIT in a single training program, and by providing older individuals with a multi-component supplement that will support optimal increases in these variables.

PACE Faculty/Staff

Research

About PACE

The McMaster Physical Activity Centre of Excellence (PACE) is a state-of-the-art, exercise research and training centre. Our scientists, students and staff are devoted to studying and improving health and well-being among older adults and people with chronic disease or disability. PACE activities focus on excellence and leadership in research, education, community engagement, and knowledge translation.